0 h 20 m, 1 jan 1872 ano - Early Marine Survey of the Americas

Descrição:

A steamship named Hassler explored the U.S. from the east coast through the Straits of Megellan and then San Francisco. Louis Agassiz was the swiss naturalist that went on this expedition.

This event was significant because more than 30,000 specimens were found and recorded.

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